The US Air Force and US Navy have long excelled at electronic warfare. In the Air Force, electronic warfare is provided by the EC-130H Compass Call (being retired and replaced by the little-reported EA-37B aircraft) and the electronic warfare F-16s. The Navy (and Marines) once relied on the EA-6B Prowler, although these have been retired and replaced with the EA F/A-18G Growler. For years, the EA-6B Prowler sat at the cutting edge of EW and was used in conflicts around the world.